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141 lines
4.7 KiB
Perl
Executable File
141 lines
4.7 KiB
Perl
Executable File
#!/usr/local/bin/perl -w
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require 5.003;
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use Text::Tabs;
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# NOTE: THE FORMAT OF HRETURN_ERROR AND HGOTO_ERROR MACROS HAS
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# CHANGED. THIS SCRIPT NO LONGER WORKS! --rpm
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# Copyright by The HDF Group.
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# Copyright by the Board of Trustees of the University of Illinois.
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# All rights reserved.
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#
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# This file is part of HDF5. The full HDF5 copyright notice, including
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# terms governing use, modification, and redistribution, is contained in
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# the files COPYING and Copyright.html. COPYING can be found at the root
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# of the source code distribution tree; Copyright.html can be found at the
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# root level of an installed copy of the electronic HDF5 document set and
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# is linked from the top-level documents page. It can also be found at
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# http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have
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# access to either file, you may request a copy from help@hdfgroup.org.
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#
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# Robb Matzke, matzke@llnl.gov
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# 30 Aug 1997
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#
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# Purpose: This script will read standard input which should be a
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# function prologue followed by a C function and will emit
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# on standard output the same source code with the function
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# prologue containing documentation for the various errors
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# that occur in the function.
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#
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# Errors are raised by calling HGOTO_ERROR() or
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# HRETURN_ERROR(). The reason for the error message is a
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# comment which appears immediately after the error macro
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# call and is contained entirely on one line:
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#
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# HRETURN_ERROR (...); /*entry not found*/
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#
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# If such a comment doesn't exist, then the previous comment
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# is used, subject to the constraint that raising an error
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# clears the previous comment.
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#
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# /* Entry not found */
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# HGOTO_ERROR (...);
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#
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# Emacs users can use this script interactively with the
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# c-mark-function and shell-command-on-region functions which
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# are normally bound to M-C-h and M-|.
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# Split STDIN into the prolog and the function body. Preserve leading
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# white space.
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$_ = join "", <STDIN>;
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my ($head, $prolog, $body) = (/^(\s*)(\/\*(.*?)\*\/)?(.*)/s)[0,2,3];
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$prolog = "" unless $prolog;
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# Find each error and the comment that goes with it.
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for ($_=$body,$comment=""; /\/\*|H(RETURN|GOTO)_ERROR/s;) {
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$_ = $&.$';
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if (/^H(RETURN|GOTO)_ERROR\s*\(\s*H5E_(\w+)\s*,\s*H5E_(\w+)\s*,/s) {
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($major, $minor, $_) = ($2, $3, $');
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$comment=$1 if /^.*?\)\s*;\s*\/\*\s*(.*?)\s*\*\//;
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$comment =~ s/^\s*\*+\s*/ /mg; # leading asterisks.
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$comment =~ s/^\s+//s; # leading white space.
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$comment =~ s/\s+$//s; # trailing white space.
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$comment =~ s/(\w)$/$1./s; # punctuation.
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$comment ||= "***NO COMMENT***";
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$errors{"$major\000$minor\000\u$comment"} = 1;
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$comment = "";
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} else {
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($comment) = /^\/\*\s*(.*?)\s*\*\//s;
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$_ = $';
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}
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}
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# Format an error so it isn't too wide.
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sub fmt_error ($) {
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local ($_) = @_;
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my ($prefix,$space,$err) = /^((.*?)([A-Z_0-9]+\s+[A-Z_0-9]+\s+))/;
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$_ = $';
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tr/\n / /s;
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my $w = 70 - length expand $prefix;
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s/(.{$w}\S+)\s+(\S)/$1."\n".$space.' 'x(length $err).$2/eg;
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return $prefix . $_."\n";
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}
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# Sort the errors by major, then minor, then comment. Duplicate
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# triplets have already been removed.
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sub by_triplet {
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my ($a_maj, $a_min, $a_com) = split /\000/, $a;
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my ($b_maj, $b_min, $b_com) = split /\000/, $b;
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$a_maj cmp $b_maj || $a_min cmp $b_min || $a_com cmp $b_com;
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}
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@errors = map {sprintf "%-9s %-13s %s\n", split /\000/}
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sort by_triplet keys %errors;
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# Add the list of errors to the prologue depending on the type of
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# prolog.
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if (($front, $back) = $prolog=~/^(.*?Errors:\s*?(?=\n)).*?\n\s*\*\s*\n(.*)/s) {
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#| * Errors: |#
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#| * __list_of_error_messages__ (zero or more lines) |#
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#| * |#
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print $head, "/*", $front, "\n";
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map {print fmt_error " *\t\t".$_} @errors;
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print " *\n", $back, "*/", $body;
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} elsif (($front,$back) = $prolog =~
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/(.*?\n\s*ERRORS:?\s*?(?=\n)).*?\n\s*\n(.*)/s) {
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#| ERRORS |#
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#| __list_of_error_messages__ (zero or more lines) |#
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#| |#
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print $head, "/*", $front, "\n";
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map {print fmt_error " ".$_} @errors;
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print "\n", $back, "*/", $body;
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} elsif ($prolog eq "") {
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# No prolog present.
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print $head;
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print " \n/*", "-"x73, "\n * Function:\t\n *\n * Purpose:\t\n *\n";
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print " * Errors:\n";
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map {print fmt_error " *\t\t".$_} @errors;
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print " *\n * Return:\tSuccess:\t\n *\n *\t\tFailure:\t\n *\n";
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print " * Programmer:\t\n *\n * Modifications:\n *\n *", '-'x73, "\n";
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print " */\n", $body;
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} else {
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# Prolog format not recognized.
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print $head, "/*", $prolog, "*/\n\n";
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print "/*\n * Errors returned by this function...\n";
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map {print fmt_error " *\t".$_} @errors;
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print " */\n", $body;
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}
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